A never before seen film that documents lopsided heavyweight championship fight between Easton’s Larry Holmes and Muhammad Ali in October 1980, will air at 8 p.m. today on ESPN.

“Muhammad and Larry”, a documentary shot 29 years ago that never was publicly screened due to “unexpected circumstances” according to ESPN, is being shown as part of the network’s “30 for 30” series.

It was a fight that never should have happened between Ali who was in the twilight of his career and the younger Holmes, who was in the midst of a seven year run as champion and who ended up pummeling his former sparring partner.

The documentary shot by Albert and David Maysles shows the training by both fighters and the build up to the fight that effectively ended Ali’s career and may have led to his development of Parkinson’s disease.

In the weeks of training before the fight, the documentarians took an intimate look at Ali trying to convince the world he was still “The Greatest.” At the same time, they documented the mild-mannered and undervalued champion Holmes as he confidently trained. The film also includes newly shot interviews by Albert Maysles with members from both the Ali and Holmes camps, as well as others who were witnesses to the fight.